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→Bupivicaine
===Bupivicaine===
===Bupivicaine===
Bupivicaine is also an amide-linked local anaesthetic, but with a duration of action of around 8 hours, it is longer acting than lidocaine. It also has a longer time to onset (20-30mins). It is very cardiotoxic, casuing asystole by decreasing the force of contraction, and therefore must NOT be given intravenously.
===Mepivicaine===
===Mepivicaine===